Are critics of the Tea Party movement racist?

The page is called “Teabonics,” a term intended to express how stupid Tea Partiers are. But the coinage “Teabonics” is a play on “Ebonics.” The word “Ebonics” isn’t supposed to make fun of mistakes made by black people. It embodies the claim that speech that may sound nonstandard is, in fact, a language with its own grammar, that may be studied and learned.